# Amazon OpenSearch Service
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 The solution configures an Amazon OpenSearch Service cluster to index ingestion technical metadata and analysis metadata. The solution creates indices per type of the machine learning categories such as `celeb`, `label`, `face`, `faceMatch`, `segment`, `moderation`, `person`, `textract`, `transcribe`, `keyphrase`, `entity`, and `ingest `to allow the end user to fine tune the search results. The indexed documents are encrypted at rest. [Node-to-node encryption](https://docs.aws.amazon.com/opensearch-service/latest/developerguide/ntn.html) is also activated.